Glucans are small pieces of the cell walls of molds that may cause inflammatory lung and airway reactions. These glucans may affect the immune system when inhaled. Exposure to very high levels of glucans or dust mixtures, including glucans, may cause a illness known as Organic Dust Toxic Syndrome (ODTS). This illness has been primarily noted in agricultural and manufacturing settings. A) asthma-like B) flu-like C) skin-lesion D) fungal.